UFO: Season 1, Episode 10

The Square Triangle (9 Dec. 1970)

TV Episode  -   -  Action | Sci-Fi
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Ratings: 7.6/10 from 38 users  
Reviews: 3 user | 1 critic

Liz Newton and her lover Cass are planning the murder of Liz's husband Jack. A UFO craft lands near to her remote woodland cottage and an alien gets out to explore the surroundings. ... See full summary »



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Title: The Square Triangle (09 Dec 1970)

The Square Triangle (09 Dec 1970) on IMDb 7.6/10

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Episode cast overview, first billed only:
Liz Newton
Dolores Mantez ...
Nina Barry
Joan Harrington
Gary Myers ...
Skydiver Capt. Lew Waterman
Keith Alexander ...
Lt. Keith Ford
Michael Billington ...
Patrick Mower ...
Cass Fowler
Ayshea Brough ...
SHADO Operative (as Ayshea)
George Sewell ...
Col. Alec Freeman
Hugo Panczak ...
SHADO Mobile Navigator
Godfrey James ...
Game Warden Mitchell
Anthony Chinn ...
Allan Cuthbertson ...
Jack Newton


Liz Newton and her lover Cass are planning the murder of Liz's husband Jack. A UFO craft lands near to her remote woodland cottage and an alien gets out to explore the surroundings. Believing the alien to be Jack, Liz and Cass shoot and kill it. Straker arrives in search of the alien and takes the couple away for questioning. Written by don @ minifie-1

Plot Summary | Add Synopsis


Action | Sci-Fi





Release Date:

9 December 1970 (UK)  »

Company Credits

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Technical Specs



Sound Mix:


Aspect Ratio:

1.33 : 1
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Did You Know?


Keith Alexander is dubbed by Robert Rietty. See more »


After being ordered not to engage the UFO, the Interceptors back off. But, all three do not have their missiles attached, whereas in a previous scene they did have them. So, if ordered to not engage, what happened to their missiles? See more »

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User Reviews

A simple job of murder
19 July 2012 | by (Ambrosia) – See all my reviews

Adrienne Corri, a beautiful woman and a fine actress, graced many British films and television shows, including 'A Clockwork Orange', 'Vampire Circus' ( both 1971 ) and, of course, 'U.F.O.'. Alan Pattillo's 'The Square Triangle' is like 'A Question Of Priorities' in that it also combines two seemingly unrelated plot lines only to merge them at the end. S.H.A.D.O. is frantically combing the English countryside searching for an Alien ( Anthony Chinn ). Elsewhere, in a remote house, 'Liz Newton' ( Corri ) and her young lover 'Cass Fowler' ( Patrick Mower ) are plotting to murder her husband 'Jack'. She nervously shoots dead the man who walks in through the front door - but it isn't Jack. As S.H.A.D.O. arrives in force, and finds the Alien dead, they realise that a triangle has just become a square...

Interesting episode, with good performances from all concerned. At S.H.A.D.O. H.Q., Liz and Cass are given the Amnesia Drug. It erases their memories of the past few hours. Foster tells Straker there is nothing to stop the pair trying to murder the husband again. Such is S.H.A.D.O.'s secrecy policy that it cannot be seen to intervene. In a chillingly bleak ending, Liz is standing over a grave. The usual end credits depicting the Earth and moon have been replaced by a shot of Liz walking away from the grave to rejoin Cass. It is endings such as these which marked 'U.F.O.' out from other shows of that period, where upbeat fade-outs were nauseatingly commonplace.

3 of 3 people found this review helpful.  Was this review helpful to you?

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